The Rimac Concept One is a 1,088 horsepower electric super car designed by 23 year old Croatian Mate Rimac that is set to take on the supercar establishment—if we ever actually see it in action. This video goes behind the scenes at Rimac's Croatian world headquarters

We've seen the Concept One move at low speeds and on display at Frankfurt but we still haven't seen any evidence the Concept One can back up its claimed 1,088 hp, 2,802 lb-ft of torque and top speed of 189 MPH.

Unfortunately this video is still not the proof we are looking for, but it is an interesting behind the scenes look at the Rimac factory in Croatia, where the Concept One will be built, with a little hooning in Rimac's Electric E30 thrown in for good measure.